Home / 468,377.10-646,187.49-307,321.56

Finding the Fourth Proportional to 468,377.10, 646,187.49 and 307,321.56

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Solution

The fourth proportional to 468,377.10, 646,187.49 and 307,321.56 is: 423,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,377.10 : 646,187.49 = 307,321.56 : x
  2. Step 2: Convert to fraction form
    468,377.10/646,187.49 = 307,321.56/x
  3. Step 3: Cross multiply
    468,377.10x = 646,187.49 × 307,321.56
  4. Step 4: Simplify right side
    468,377.10x = 198,587,347,479.28
  5. Step 5: Solve for x
    x = 198,587,347,479.28/468,377.10
  6. Step 6: Final answer
    x = 423,990.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.